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Pressure Vessels Approvals

Left Nav - HazMat Approvals and Permits
Pressure Vessels Overview
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Cylinder Requalifiers

Overview

Procedures and Applications

Independent Inspection Agencies/3rd Party Approval Agencies

Termination of COVID RIN Guidance Waiver April 15, 2021

The Pipeline and Hazardous Materials Safety Administration (PHMSA) intends to allow the current COVID RIN...

Cylinder Manufacturers

Overview

A person who seeks to manufacture DOT specification or special permit cylinders outside the United States must seek an approval from the Associate Administrator to perform the chemical analyses and tests of those cylinders in accordance with 49 CFR Section 107.807.

Current...

Designated Approval Agencies

Document updated to reflect what each approval holder is qualified to inspect (new manufacture or periodic inspections).

Independent Inspection Agencies Information

INDEPENDENT INSPECTION AGENCY (IIA)

49 CFR 107.803

Applicants seeking approval to requalify, repair, rebuild, reheat or manufacture DOT or UN ISO Cylinders in accordance with the 49 CFR must have an Independent Inspection Agency inspect their...